Revert from version 5 back to 4

[Viiviv]

Hello,

Version 5 seems to be a bit buggy and I've been hit with #8555
As there doesn't seem to be a fix coming for this anytime soon the plan is now to revert to using version 4
The problem is that he database has been migrated to the new version and has been in use for a while and changed since
the update backup.

Is there a good path to downgrading the snipe version from 5 to 4 ?

Any ideas appreciated